Startup of Formatting Biological Membrane in Denitrifying Filter at Low Temperature

  • Long Wang
  • Yanyan Dou
  • Qiaoling Wan
  • Shuang Mao
  • Wen Zhang
  • Jiaqi Lin
Conference paper
Part of the Environmental Earth Sciences book series (EESCI)

Abstract

Pollution and treatment of the wastewater have been the focus of environmental protection. In the microbial nitrogen removal processes, a denitrification filter has the advantages of low investment, less land occupied, high biomass and high treatment efficiency. Therefore, it is one of the most widely used processing technologies in advanced treatment. This study uses secondary effluent of the East Sewage Treatment Plant as the research object. The effluent of the waste water treatment plant (WWTP) has a low temperature about 10–20 °C. The inner diameter of the filter column is 150 mm, and the height of the column is 2.3 m. The denitrification filter used boring exposure and continuous water to select the advantage bacterium group to form biological membrane attached on the surface of the filter material. This experiment studies the different treatment effect when forming biological membrane using two different packing processes (ceramsite packing and polyethylene polyhedral hollow ring filter packing) in the denitrification filter. During the experiment, TN, NO3–N, NO2–N, NH4+–N, CODCr were constantly measured as well as other regular indicators. The above regular indicators show the biological membrane attachment condition during the formation of the biological membrane. To confirm this procedure successfully, the mark was that the CODcr removal rate reached 50% and the NO3–N removal rate reached 60%. It was shown that the ceramsite packing needed 25 d, and the polyethylene polyhedral hollow ring packing needed 30 d. This experiment indicates that the startup time, membrane growth and removal efficiency of the ceramsite filter are better than the polyethylene polyhedral hollow ring filter.

Keywords

Low temperature Denitrification filter Removal efficiency 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Long Wang
    • 1
  • Yanyan Dou
    • 2
  • Qiaoling Wan
    • 3
  • Shuang Mao
    • 1
  • Wen Zhang
    • 1
  • Jiaqi Lin
    • 4
  1. 1.Chongqing Academy of Metrology and Quality InspectionChongqingChina
  2. 2.College of Energy and EnvironmentalZhongyuan University of TechnologyZhengzhouChina
  3. 3.Chongqing Monitoring Station, Water Quality Monitoring Network of National Urban Water SupplyChongqingChina
  4. 4.Hebei University of EngineeringHandanChina

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